The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/ath/if_ath_misc.h

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    1 /*-
    2  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer,
   10  *    without modification.
   11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
   12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
   13  *    redistribution must be conditioned upon including a substantially
   14  *    similar Disclaimer requirement for further binary redistribution.
   15  *
   16  * NO WARRANTY
   17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
   20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
   21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
   22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
   25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   27  * THE POSSIBILITY OF SUCH DAMAGES.
   28  *
   29  * $FreeBSD: releng/11.2/sys/dev/ath/if_ath_misc.h 331722 2018-03-29 02:50:57Z eadler $
   30  */
   31 #ifndef __IF_ATH_MISC_H__
   32 #define __IF_ATH_MISC_H__
   33 
   34 /*
   35  * This is where definitions for "public things" in if_ath.c
   36  * will go for the time being.
   37  *
   38  * Anything in here should eventually be moved out of if_ath.c
   39  * and into something else.
   40  */
   41 
   42 extern int ath_rxbuf;
   43 extern int ath_txbuf;
   44 extern int ath_txbuf_mgmt;
   45 
   46 extern int ath_tx_findrix(const struct ath_softc *sc, uint8_t rate);
   47 
   48 extern struct ath_buf * ath_getbuf(struct ath_softc *sc,
   49             ath_buf_type_t btype);
   50 extern struct ath_buf * _ath_getbuf_locked(struct ath_softc *sc,
   51             ath_buf_type_t btype);
   52 extern struct ath_buf * ath_buf_clone(struct ath_softc *sc,
   53             struct ath_buf *bf);
   54 /* XXX change this to NULL the buffer pointer? */
   55 extern void ath_freebuf(struct ath_softc *sc, struct ath_buf *bf);
   56 extern void ath_returnbuf_head(struct ath_softc *sc, struct ath_buf *bf);
   57 extern void ath_returnbuf_tail(struct ath_softc *sc, struct ath_buf *bf);
   58 
   59 extern int ath_reset(struct ath_softc *, ATH_RESET_TYPE);
   60 extern void ath_tx_default_comp(struct ath_softc *sc, struct ath_buf *bf,
   61             int fail);
   62 extern void ath_tx_update_ratectrl(struct ath_softc *sc,
   63             struct ieee80211_node *ni, struct ath_rc_series *rc,
   64             struct ath_tx_status *ts, int frmlen, int nframes, int nbad);
   65 
   66 extern  int ath_hal_gethangstate(struct ath_hal *ah, uint32_t mask,
   67             uint32_t *hangs);
   68 
   69 extern void ath_tx_freebuf(struct ath_softc *sc, struct ath_buf *bf,
   70     int status);
   71 extern  void ath_txq_freeholdingbuf(struct ath_softc *sc,
   72             struct ath_txq *txq);
   73 
   74 extern void ath_txqmove(struct ath_txq *dst, struct ath_txq *src);
   75 
   76 extern void ath_mode_init(struct ath_softc *sc);
   77 
   78 extern void ath_setdefantenna(struct ath_softc *sc, u_int antenna);
   79 
   80 extern void ath_setslottime(struct ath_softc *sc);
   81 
   82 extern  void ath_legacy_attach_comp_func(struct ath_softc *sc);
   83 
   84 extern  void ath_tx_draintxq(struct ath_softc *sc, struct ath_txq *txq);
   85 
   86 extern  void ath_legacy_tx_drain(struct ath_softc *sc,
   87             ATH_RESET_TYPE reset_type);
   88 
   89 extern  void ath_tx_process_buf_completion(struct ath_softc *sc,
   90             struct ath_txq *txq, struct ath_tx_status *ts, struct ath_buf *bf);
   91 
   92 extern  int ath_stoptxdma(struct ath_softc *sc);
   93 
   94 extern  void ath_tx_update_tim(struct ath_softc *sc,
   95             struct ieee80211_node *ni, int enable);
   96 
   97 /*
   98  * This is only here so that the RX proc function can call it.
   99  * It's very likely that the "start TX after RX" call should be
  100  * done via something in if_ath.c, moving "rx tasklet" into
  101  * if_ath.c and do the ath_start() call there.  Once that's done,
  102  * we can kill this.
  103  */
  104 extern void ath_start(struct ifnet *ifp);
  105 extern  void ath_start_task(void *arg, int npending);
  106 
  107 extern void ath_tx_dump(struct ath_softc *sc, struct ath_txq *txq);
  108 
  109 /*
  110  * Power state tracking.
  111  */
  112 extern  void _ath_power_setpower(struct ath_softc *sc, int power_state, const char *file, int line);
  113 extern  void _ath_power_set_selfgen(struct ath_softc *sc, int power_state, const char *file, int line);
  114 extern  void _ath_power_set_power_state(struct ath_softc *sc, int power_state, const char *file, int line);
  115 extern  void _ath_power_restore_power_state(struct ath_softc *sc, const char *file, int line);
  116 
  117 #define ath_power_setpower(sc, ps) _ath_power_setpower(sc, ps, __FILE__, __LINE__)
  118 #define ath_power_setselfgen(sc, ps) _ath_power_set_selfgen(sc, ps, __FILE__, __LINE__)
  119 #define ath_power_set_power_state(sc, ps) _ath_power_set_power_state(sc, ps, __FILE__, __LINE__)
  120 #define ath_power_restore_power_state(sc) _ath_power_restore_power_state(sc, __FILE__, __LINE__)
  121 
  122 /*
  123  * Kick the frame TX task.
  124  */
  125 static inline void
  126 ath_tx_kick(struct ath_softc *sc)
  127 {
  128 
  129         /* XXX NULL for now */
  130 }
  131 
  132 /*
  133  * Kick the software TX queue task.
  134  */
  135 static inline void
  136 ath_tx_swq_kick(struct ath_softc *sc)
  137 {
  138 
  139         taskqueue_enqueue(sc->sc_tq, &sc->sc_txqtask);
  140 }
  141 
  142 #endif

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